介绍了一种毛细管气相色谱法测定1,3 -丁二烯中炔烃杂质含量的新试验方法。
A new test method, in which alkyne impurity content in 1, 3-butadiene is determined by a capillary gas chromatograph, was introduced.
采用田间试验及人工渗滤池试验方法，研究了土壤中硝态氮含量的影响因素。
An experiment in field and artificial penetration-filter pond test both were conducted to show factors affecting content of nitrate-nitrogen in soil in the present study.
研究了氮含量对热镀锌双相钢拉伸性能的影响，用定拉伸试验方法模拟了平整伸长率对热镀锌双相钢屈强比的影响。
Using scaling tension test method simulated the effect of leveling elongations on yield strength ratio of hot dip galvanized dual phase steels.
根据化学动力学原理，采用恒温加速试验方法对阿魏酸水溶液的化学稳定性进行了研究，通过高效液相色谱法测定样品中阿魏酸含量。
The chemical stability of aqueous solution of ferulic acid was studied by the constant temperature accelerated test according to the princiPle of chemical dynamics.
发气量试验方法的优点是能够迅速和准确地确定 型砂中有效煤粉的具体含量。
The gas evolution test method has the advantage that the effective coal dust content in green sand can be determined rapidly and accurately.
发气量试验方法的优点是能够迅速和准确地确定 型砂中有效煤粉的具体含量。
The gas evolution test method has the advantage that the effective coal dust content in green sand can be determined rapidly and accurately.
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